55312461 has 6 divisors (see below), whose sum is σ = 79895790. Its totient is φ = 36874968.

The previous prime is 55312459. The next prime is 55312469. The reversal of 55312461 is 16421355.

It can be written as a sum of positive squares in only one way, i.e., 37088100 + 18224361 = 6090^2 + 4269^2 .

It is not a de Polignac number, because 55312461 - 2¹ = 55312459 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55312469) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3072906 + ... + 3072923.

It is an arithmetic number, because the mean of its divisors is an integer number (13315965).

Almost surely, 2^55312461 is an apocalyptic number.

It is an amenable number.

55312461 is a deficient number, since it is larger than the sum of its proper divisors (24583329).

55312461 is a wasteful number, since it uses less digits than its factorization.

55312461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6145835 (or 6145832 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 55312461 is about 7437.2347683800. The cubic root of 55312461 is about 381.0140528431.

The spelling of 55312461 in words is "fifty-five million, three hundred twelve thousand, four hundred sixty-one".