57223551 has 64 divisors (see below), whose sum is σ = 100564992. Its totient is φ = 28080000.

The previous prime is 57223549. The next prime is 57223589. The reversal of 57223551 is 15532275.

It is not a de Polignac number, because 57223551 - 2¹ = 57223549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57223541) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 436756 + ... + 436886.

It is an arithmetic number, because the mean of its divisors is an integer number (1571328).

Almost surely, 2^57223551 is an apocalyptic number.

57223551 is a deficient number, since it is larger than the sum of its proper divisors (43341441).

57223551 is a wasteful number, since it uses less digits than its factorization.

57223551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244.

The product of its digits is 10500, while the sum is 30.

The square root of 57223551 is about 7564.6249741808. The cubic root of 57223551 is about 385.3525774490.

The spelling of 57223551 in words is "fifty-seven million, two hundred twenty-three thousand, five hundred fifty-one".