542601647 has 8 divisors (see below), whose sum is σ = 632772000. Its totient is φ = 465086832.

The previous prime is 542601641. The next prime is 542601659. The reversal of 542601647 is 746106245.

It is not a de Polignac number, because 542601647 - 2¹⁰ = 542600623 is a prime.

It is a super-2 number, since 2×542601647² = 588833094654225218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542601641) 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, 790622 + ... + 791307.

It is an arithmetic number, because the mean of its divisors is an integer number (79096500).

Almost surely, 2^542601647 is an apocalyptic number.

542601647 is a deficient number, since it is larger than the sum of its proper divisors (90170353).

542601647 is an equidigital number, since it uses as much as digits as its factorization.

542601647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1581950 (or 1581936 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 542601647 is about 23293.8113455055. The cubic root of 542601647 is about 815.6309600755.

The spelling of 542601647 in words is "five hundred forty-two million, six hundred one thousand, six hundred forty-seven".