55613451 has 16 divisors (see below), whose sum is σ = 75075840. Its totient is φ = 36616800.

The previous prime is 55613447. The next prime is 55613489. The reversal of 55613451 is 15431655.

It is not a de Polignac number, because 55613451 - 2² = 55613447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55613431) 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, 132520 + ... + 132938.

It is an arithmetic number, because the mean of its divisors is an integer number (4692240).

Almost surely, 2^55613451 is an apocalyptic number.

55613451 is a deficient number, since it is larger than the sum of its proper divisors (19462389).

55613451 is a wasteful number, since it uses less digits than its factorization.

55613451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866.

The product of its digits is 9000, while the sum is 30.

The square root of 55613451 is about 7457.4426581771. The cubic root of 55613451 is about 381.7039156474.

The spelling of 55613451 in words is "fifty-five million, six hundred thirteen thousand, four hundred fifty-one".