542252664 has 32 divisors (see below), whose sum is σ = 1506258000. Its totient is φ = 180750816.

The previous prime is 542252569. The next prime is 542252681. The reversal of 542252664 is 466252245.

542252664 is a `hidden beast` number, since 54 + 22 + 526 + 64 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1254999 + ... + 1255430.

Almost surely, 2^542252664 is an apocalyptic number.

542252664 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

542252664 is an abundant number, since it is smaller than the sum of its proper divisors (964005336).

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

542252664 is a wasteful number, since it uses less digits than its factorization.

542252664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2510444 (or 2510434 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

The square root of 542252664 is about 23286.3192454282. The cubic root of 542252664 is about 815.4560605049.

The spelling of 542252664 in words is "five hundred forty-two million, two hundred fifty-two thousand, six hundred sixty-four".