712255530 has 32 divisors (see below), whose sum is σ = 1953615744. Its totient is φ = 162801216.

The previous prime is 712255507. The next prime is 712255543. The reversal of 712255530 is 35552217.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

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, 1695637 + ... + 1696056.

It is an arithmetic number, because the mean of its divisors is an integer number (61050492).

Almost surely, 2^712255530 is an apocalyptic number.

712255530 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

712255530 is an abundant number, since it is smaller than the sum of its proper divisors (1241360214).

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

712255530 is a wasteful number, since it uses less digits than its factorization.

712255530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3391710.

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 712255530 is about 26688.1158945325. The cubic root of 712255530 is about 893.0558299651.

The spelling of 712255530 in words is "seven hundred twelve million, two hundred fifty-five thousand, five hundred thirty".