64051572 has 24 divisors (see below), whose sum is σ = 160950496. Its totient is φ = 19708128.

The previous prime is 64051523. The next prime is 64051579. The reversal of 64051572 is 27515046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64051579) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205138 + ... + 205449.

Almost surely, 2^64051572 is an apocalyptic number.

It is an amenable number.

64051572 is an abundant number, since it is smaller than the sum of its proper divisors (96898924).

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

64051572 is a wasteful number, since it uses less digits than its factorization.

64051572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410607 (or 410605 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 64051572 is about 8003.2226009277. Note that the first 3 decimals coincide. The cubic root of 64051572 is about 400.1074128203.

The spelling of 64051572 in words is "sixty-four million, fifty-one thousand, five hundred seventy-two".