55154631 has 16 divisors (see below), whose sum is σ = 84164864. Its totient is φ = 31472064.

The previous prime is 55154629. The next prime is 55154633. The reversal of 55154631 is 13645155.

It is an interprime number because it is at equal distance from previous prime (55154629) and next prime (55154633).

It is not a de Polignac number, because 55154631 - 2¹ = 55154629 is a prime.

It is a super-2 number, since 2×55154631² = 6084066641492322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55154633) 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, 18276 + ... + 21078.

It is an arithmetic number, because the mean of its divisors is an integer number (5260304).

Almost surely, 2^55154631 is an apocalyptic number.

55154631 is a deficient number, since it is larger than the sum of its proper divisors (29010233).

55154631 is a wasteful number, since it uses less digits than its factorization.

55154631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3750.

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

The square root of 55154631 is about 7426.6163897161. The cubic root of 55154631 is about 380.6513091680.

Adding to 55154631 its reverse (13645155), we get a palindrome (68799786).

The spelling of 55154631 in words is "fifty-five million, one hundred fifty-four thousand, six hundred thirty-one".