55501451 has 4 divisors (see below), whose sum is σ = 58422600. Its totient is φ = 52580304.

The previous prime is 55501429. The next prime is 55501469. The reversal of 55501451 is 15410555.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55501451 - 2⁶ = 55501387 is a prime.

It is a super-2 number, since 2×55501451² = 6160822126210802, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55501451.

It is not an unprimeable number, because it can be changed into a prime (55501421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1460546 + ... + 1460583.

It is an arithmetic number, because the mean of its divisors is an integer number (14605650).

Almost surely, 2^55501451 is an apocalyptic number.

55501451 is a deficient number, since it is larger than the sum of its proper divisors (2921149).

55501451 is a wasteful number, since it uses less digits than its factorization.

55501451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2921148.

The product of its (nonzero) digits is 2500, while the sum is 26.

The square root of 55501451 is about 7449.9295969828. The cubic root of 55501451 is about 381.4475054409.

The spelling of 55501451 in words is "fifty-five million, five hundred one thousand, four hundred fifty-one".