1053521667 has 32 divisors (see below), whose sum is σ = 1730603520. Its totient is φ = 628020000.

The previous prime is 1053521663. The next prime is 1053521687. The reversal of 1053521667 is 7661253501.

It is not a de Polignac number, because 1053521667 - 2² = 1053521663 is a prime.

It is a super-2 number, since 2×1053521667² = 2219815805676917778, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1053521663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10959 + ... + 47192.

It is an arithmetic number, because the mean of its divisors is an integer number (54081360).

Almost surely, 2^1053521667 is an apocalyptic number.

1053521667 is a deficient number, since it is larger than the sum of its proper divisors (677081853).

1053521667 is a wasteful number, since it uses less digits than its factorization.

1053521667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58232 (or 58226 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 1053521667 is about 32457.9985057613. The cubic root of 1053521667 is about 1017.5314092613.

The spelling of 1053521667 in words is "one billion, fifty-three million, five hundred twenty-one thousand, six hundred sixty-seven".