57487551 has 16 divisors (see below), whose sum is σ = 83746560. Its totient is φ = 34787520.

The previous prime is 57487531. The next prime is 57487553. The reversal of 57487551 is 15578475.

It is not a de Polignac number, because 57487551 - 2⁶ = 57487487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57487553) 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, 36486 + ... + 38028.

It is an arithmetic number, because the mean of its divisors is an integer number (5234160).

Almost surely, 2^57487551 is an apocalyptic number.

57487551 is a deficient number, since it is larger than the sum of its proper divisors (26259009).

57487551 is a wasteful number, since it uses less digits than its factorization.

57487551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2686.

The product of its digits is 196000, while the sum is 42.

The square root of 57487551 is about 7582.0545368653. The cubic root of 57487551 is about 385.9442745761.

The spelling of 57487551 in words is "fifty-seven million, four hundred eighty-seven thousand, five hundred fifty-one".