55150464 has 64 divisors (see below), whose sum is σ = 154224000. Its totient is φ = 17413632.

The previous prime is 55150409. The next prime is 55150507. The reversal of 55150464 is 46405155.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3517 + ... + 11075.

It is an arithmetic number, because the mean of its divisors is an integer number (2409750).

Almost surely, 2^55150464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55150464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77112000).

55150464 is an abundant number, since it is smaller than the sum of its proper divisors (99073536).

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

55150464 is a wasteful number, since it uses less digits than its factorization.

55150464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7595 (or 7583 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 55150464 is about 7426.3358394298. The cubic root of 55150464 is about 380.6417227022.

It can be divided in two parts, 551 and 50464, that added together give a palindrome (51015).

The spelling of 55150464 in words is "fifty-five million, one hundred fifty thousand, four hundred sixty-four".