57411261 has 40 divisors (see below), whose sum is σ = 91711224. Its totient is φ = 35665920.

The previous prime is 57411253. The next prime is 57411269. The reversal of 57411261 is 16211475.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (57411253) and next prime (57411269).

It can be written as a sum of positive squares in 4 ways, for example, as 35928036 + 21483225 = 5994^2 + 4635^2 .

It is not a de Polignac number, because 57411261 - 2³ = 57411253 is a prime.

It is a super-2 number, since 2×57411261² = 6592105779220242, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57411269) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 238101 + ... + 238341.

Almost surely, 2^57411261 is an apocalyptic number.

57411261 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

57411261 is a deficient number, since it is larger than the sum of its proper divisors (34299963).

57411261 is a wasteful number, since it uses less digits than its factorization.

57411261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443 (or 434 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 57411261 is about 7577.0219083753. The cubic root of 57411261 is about 385.7734739858.

The spelling of 57411261 in words is "fifty-seven million, four hundred eleven thousand, two hundred sixty-one".