55923531 has 8 divisors (see below), whose sum is σ = 74849280. Its totient is φ = 37140072.

The previous prime is 55923529. The next prime is 55923551. The reversal of 55923531 is 13532955.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55923531 - 2¹ = 55923529 is a prime.

It is a super-2 number, since 2×55923531² = 6254882639015922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55923492 and 55923501.

It is not an unprimeable number, because it can be changed into a prime (55923551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34651 + ... + 36228.

It is an arithmetic number, because the mean of its divisors is an integer number (9356160).

Almost surely, 2^55923531 is an apocalyptic number.

55923531 is a deficient number, since it is larger than the sum of its proper divisors (18925749).

55923531 is a wasteful number, since it uses less digits than its factorization.

55923531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71145.

The product of its digits is 20250, while the sum is 33.

The square root of 55923531 is about 7478.2037281690. The cubic root of 55923531 is about 382.4120144500.

It can be divided in two parts, 559 and 23531, that added together give a triangular number (24090 = T₂₁₉).

The spelling of 55923531 in words is "fifty-five million, nine hundred twenty-three thousand, five hundred thirty-one".