22002057 has 64 divisors (see below), whose sum is σ = 42854400. Its totient is φ = 10808640.

The previous prime is 22002031. The next prime is 22002061. The reversal of 22002057 is 75020022.

It is a happy number.

It is not a de Polignac number, because 22002057 - 2⁸ = 22001801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22002067) 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, 39223 + ... + 39779.

It is an arithmetic number, because the mean of its divisors is an integer number (669600).

Almost surely, 2^22002057 is an apocalyptic number.

22002057 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

22002057 is a deficient number, since it is larger than the sum of its proper divisors (20852343).

22002057 is a wasteful number, since it uses less digits than its factorization.

22002057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603 (or 597 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

The square root of 22002057 is about 4690.6350316348. The cubic root of 22002057 is about 280.2126658160.

Adding to 22002057 its reverse (75020022), we get a palindrome (97022079).

The spelling of 22002057 in words is "twenty-two million, two thousand, fifty-seven".