57091451 has 4 divisors (see below), whose sum is σ = 59573712. Its totient is φ = 54609192.

The previous prime is 57091427. The next prime is 57091469. The reversal of 57091451 is 15419075.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57091451 - 2¹⁰ = 57090427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57091421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1241096 + ... + 1241141.

It is an arithmetic number, because the mean of its divisors is an integer number (14893428).

Almost surely, 2^57091451 is an apocalyptic number.

57091451 is a deficient number, since it is larger than the sum of its proper divisors (2482261).

57091451 is a wasteful number, since it uses less digits than its factorization.

57091451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2482260.

The product of its (nonzero) digits is 6300, while the sum is 32.

The square root of 57091451 is about 7555.8884983832. Note that the first 3 decimals coincide. The cubic root of 57091451 is about 385.0558214444.

The spelling of 57091451 in words is "fifty-seven million, ninety-one thousand, four hundred fifty-one".