76380553 has 4 divisors (see below), whose sum is σ = 76807440. Its totient is φ = 75953668.

The previous prime is 76380547. The next prime is 76380571. The reversal of 76380553 is 35508367.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35508367 = 79 ⋅449473.

It is a cyclic number.

It is not a de Polignac number, because 76380553 - 2²¹ = 74283401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76380503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213175 + ... + 213532.

It is an arithmetic number, because the mean of its divisors is an integer number (19201860).

Almost surely, 2^76380553 is an apocalyptic number.

It is an amenable number.

76380553 is a deficient number, since it is larger than the sum of its proper divisors (426887).

76380553 is a wasteful number, since it uses less digits than its factorization.

76380553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426886.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 76380553 is about 8739.5968442486. The cubic root of 76380553 is about 424.2881796229.

The spelling of 76380553 in words is "seventy-six million, three hundred eighty thousand, five hundred fifty-three".