22542057 has 20 divisors (see below), whose sum is σ = 33806916. Its totient is φ = 14968800.

The previous prime is 22542049. The next prime is 22542103. The reversal of 22542057 is 75024522.

22542057 is an esthetic number in base 5, because in such base its adjacent digits differ by 1.

It can be written as a sum of positive squares in 2 ways, for example, as 17438976 + 5103081 = 4176^2 + 2259^2 .

It is not a de Polignac number, because 22542057 - 2³ = 22542049 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 22542057.

It is not an unprimeable number, because it can be changed into a prime (22542757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 31807 + ... + 32507.

Almost surely, 2^22542057 is an apocalyptic number.

22542057 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

22542057 is a deficient number, since it is larger than the sum of its proper divisors (11264859).

22542057 is an equidigital number, since it uses as much as digits as its factorization.

22542057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110 (or 1101 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 22542057 is about 4747.8476176053. The cubic root of 22542057 is about 282.4865976360.

Adding to 22542057 its reverse (75024522), we get a palindrome (97566579).

The spelling of 22542057 in words is "twenty-two million, five hundred forty-two thousand, fifty-seven".