55498731 has 8 divisors (see below), whose sum is σ = 74061120. Its totient is φ = 36967752.

The previous prime is 55498699. The next prime is 55498741. The reversal of 55498731 is 13789455.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55498731 - 2⁵ = 55498699 is a prime.

It is a super-2 number, since 2×55498731² = 6160218285220722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55498741) 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, 3361 + ... + 11058.

It is an arithmetic number, because the mean of its divisors is an integer number (9257640).

Almost surely, 2^55498731 is an apocalyptic number.

55498731 is a deficient number, since it is larger than the sum of its proper divisors (18562389).

55498731 is a wasteful number, since it uses less digits than its factorization.

55498731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15705.

The product of its digits is 151200, while the sum is 42.

The square root of 55498731 is about 7449.7470426854. The cubic root of 55498731 is about 381.4412740473.

The spelling of 55498731 in words is "fifty-five million, four hundred ninety-eight thousand, seven hundred thirty-one".