55154412 has 48 divisors (see below), whose sum is σ = 143431680. Its totient is φ = 18328464.

The previous prime is 55154401. The next prime is 55154441. The reversal of 55154412 is 21445155.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49453 + ... + 50555.

It is an arithmetic number, because the mean of its divisors is an integer number (2988160).

Almost surely, 2^55154412 is an apocalyptic number.

It is an amenable number.

55154412 is an abundant number, since it is smaller than the sum of its proper divisors (88277268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55154412 is a wasteful number, since it uses less digits than its factorization.

55154412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1579 (or 1571 counting only the distinct ones).

The product of its digits is 4000, while the sum is 27.

The square root of 55154412 is about 7426.6016454365. The cubic root of 55154412 is about 380.6508053557.

Adding to 55154412 its reverse (21445155), we get a palindrome (76599567).

The spelling of 55154412 in words is "fifty-five million, one hundred fifty-four thousand, four hundred twelve".