55657534 has 8 divisors (see below), whose sum is σ = 83851560. Its totient is φ = 27707016.

The previous prime is 55657531. The next prime is 55657561. The reversal of 55657534 is 43575655.

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

It is a super-2 number, since 2×55657534² = 6195522181922312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55657531) 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, 60304 + ... + 61219.

It is an arithmetic number, because the mean of its divisors is an integer number (10481445).

Almost surely, 2^55657534 is an apocalyptic number.

55657534 is a deficient number, since it is larger than the sum of its proper divisors (28194026).

55657534 is a wasteful number, since it uses less digits than its factorization.

55657534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121754.

The product of its digits is 315000, while the sum is 40.

The square root of 55657534 is about 7460.3977105782. The cubic root of 55657534 is about 381.8047438306.

The spelling of 55657534 in words is "fifty-five million, six hundred fifty-seven thousand, five hundred thirty-four".