1057216506 has 32 divisors (see below), whose sum is σ = 2246164800. Its totient is φ = 330791040.

The previous prime is 1057216481. The next prime is 1057216607. The reversal of 1057216506 is 6056127501.

It is a super-2 number, since 2×1057216506² = 2235413481117696072, which contains 22 as substring.

It is a zygodrome in base 4.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30115 + ... + 54966.

It is an arithmetic number, because the mean of its divisors is an integer number (70192650).

Almost surely, 2^1057216506 is an apocalyptic number.

1057216506 is an abundant number, since it is smaller than the sum of its proper divisors (1188948294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1057216506 is a wasteful number, since it uses less digits than its factorization.

1057216506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85214.

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 1057216506 is about 32514.8659231435. The cubic root of 1057216506 is about 1018.7195601529.

The spelling of 1057216506 in words is "one billion, fifty-seven million, two hundred sixteen thousand, five hundred six".