57061655 has 32 divisors (see below), whose sum is σ = 83980800. Its totient is φ = 36346752.

The previous prime is 57061649. The next prime is 57061663. The reversal of 57061655 is 55616075.

It is a cyclic number.

It is not a de Polignac number, because 57061655 - 2⁶ = 57061591 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34436 + ... + 36054.

It is an arithmetic number, because the mean of its divisors is an integer number (2624400).

Almost surely, 2^57061655 is an apocalyptic number.

57061655 is a deficient number, since it is larger than the sum of its proper divisors (26919145).

57061655 is a wasteful number, since it uses less digits than its factorization.

57061655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1703.

The product of its (nonzero) digits is 31500, while the sum is 35.

The square root of 57061655 is about 7553.9165338254. The cubic root of 57061655 is about 384.9888229734.

The spelling of 57061655 in words is "fifty-seven million, sixty-one thousand, six hundred fifty-five".