1057557502 has 8 divisors (see below), whose sum is σ = 1586520000. Its totient is φ = 528717504.

The previous prime is 1057557451. The next prime is 1057557559. The reversal of 1057557502 is 2057557501.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1057557502² = 2236855740072960008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4627 + ... + 46222.

It is an arithmetic number, because the mean of its divisors is an integer number (198315000).

Almost surely, 2^1057557502 is an apocalyptic number.

1057557502 is a deficient number, since it is larger than the sum of its proper divisors (528962498).

1057557502 is a wasteful number, since it uses less digits than its factorization.

1057557502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61250.

The product of its (nonzero) digits is 61250, while the sum is 37.

The square root of 1057557502 is about 32520.1091941586. The cubic root of 1057557502 is about 1018.8290747609.

Subtracting 1057557502 from its reverse (2057557501), we obtain a palindrome (999999999).

The spelling of 1057557502 in words is "one billion, fifty-seven million, five hundred fifty-seven thousand, five hundred two".