55745810 has 16 divisors (see below), whose sum is σ = 105624000. Its totient is φ = 21124656.

The previous prime is 55745783. The next prime is 55745819. The reversal of 55745810 is 1854755.

It is a super-2 number, since 2×55745810² = 6215190665112200, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55745819) 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, 146510 + ... + 146889.

It is an arithmetic number, because the mean of its divisors is an integer number (6601500).

Almost surely, 2^55745810 is an apocalyptic number.

55745810 is a deficient number, since it is larger than the sum of its proper divisors (49878190).

55745810 is a wasteful number, since it uses less digits than its factorization.

55745810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293425.

The product of its (nonzero) digits is 28000, while the sum is 35.

The square root of 55745810 is about 7466.3116731088. The cubic root of 55745810 is about 382.0064918535.

The spelling of 55745810 in words is "fifty-five million, seven hundred forty-five thousand, eight hundred ten".