55627790 has 32 divisors (see below), whose sum is σ = 103762944. Its totient is φ = 21458080.

The previous prime is 55627787. The next prime is 55627799. The reversal of 55627790 is 9772655.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55627799) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32537 + ... + 34203.

It is an arithmetic number, because the mean of its divisors is an integer number (3242592).

Almost surely, 2^55627790 is an apocalyptic number.

55627790 is a deficient number, since it is larger than the sum of its proper divisors (48135154).

55627790 is a wasteful number, since it uses less digits than its factorization.

55627790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1792.

The product of its (nonzero) digits is 132300, while the sum is 41.

The square root of 55627790 is about 7458.4039847678. The cubic root of 55627790 is about 381.7367181560.

The spelling of 55627790 in words is "fifty-five million, six hundred twenty-seven thousand, seven hundred ninety".