40137553 has 4 divisors (see below), whose sum is σ = 41882688. Its totient is φ = 38392420.

The previous prime is 40137551. The next prime is 40137569. The reversal of 40137553 is 35573104.

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.

It is a cyclic number.

It is not a de Polignac number, because 40137553 - 2¹ = 40137551 is a prime.

It is a super-2 number, since 2×40137553² = 3222046321655618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40137551) 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, 872533 + ... + 872578.

It is an arithmetic number, because the mean of its divisors is an integer number (10470672).

Almost surely, 2^40137553 is an apocalyptic number.

It is an amenable number.

40137553 is a deficient number, since it is larger than the sum of its proper divisors (1745135).

40137553 is a wasteful number, since it uses less digits than its factorization.

40137553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1745134.

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 40137553 is about 6335.4205069593. The cubic root of 40137553 is about 342.3867613642.

The spelling of 40137553 in words is "forty million, one hundred thirty-seven thousand, five hundred fifty-three".