55029531 has 16 divisors (see below), whose sum is σ = 74419200. Its totient is φ = 36167040.

The previous prime is 55029521. The next prime is 55029571. The reversal of 55029531 is 13592055.

It is not a de Polignac number, because 55029531 - 2⁹ = 55029019 is a prime.

It is a super-2 number, since 2×55029531² = 6056498564159922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55029521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91570 + ... + 92168.

It is an arithmetic number, because the mean of its divisors is an integer number (4651200).

Almost surely, 2^55029531 is an apocalyptic number.

55029531 is a deficient number, since it is larger than the sum of its proper divisors (19389669).

55029531 is a wasteful number, since it uses less digits than its factorization.

55029531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986.

The product of its (nonzero) digits is 6750, while the sum is 30.

The square root of 55029531 is about 7418.1891995284. The cubic root of 55029531 is about 380.3632975278.

The spelling of 55029531 in words is "fifty-five million, twenty-nine thousand, five hundred thirty-one".