5015551 has 4 divisors (see below), whose sum is σ = 5022712. Its totient is φ = 5008392.

The previous prime is 5015519. The next prime is 5015557. The reversal of 5015551 is 1555105.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1555105 = 5 ⋅311021.

It is a cyclic number.

It is not a de Polignac number, because 5015551 - 2⁵ = 5015519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5015557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2400 + ... + 3973.

It is an arithmetic number, because the mean of its divisors is an integer number (1255678).

Almost surely, 2^5015551 is an apocalyptic number.

5015551 is a deficient number, since it is larger than the sum of its proper divisors (7161).

5015551 is an equidigital number, since it uses as much as digits as its factorization.

5015551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7160.

The product of its (nonzero) digits is 625, while the sum is 22.

The square root of 5015551 is about 2239.5425872262. The cubic root of 5015551 is about 171.1746900999.

The spelling of 5015551 in words is "five million, fifteen thousand, five hundred fifty-one".