55811496 has 64 divisors (see below), whose sum is σ = 153961920. Its totient is φ = 16750080.

The previous prime is 55811453. The next prime is 55811543. The reversal of 55811496 is 69411855.

It is a super-2 number, since 2×55811496² = 6229846171516032, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

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, 10611 + ... + 14973.

It is an arithmetic number, because the mean of its divisors is an integer number (2405655).

Almost surely, 2^55811496 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 55811496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76980960).

55811496 is an abundant number, since it is smaller than the sum of its proper divisors (98150424).

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

55811496 is a wasteful number, since it uses less digits than its factorization.

55811496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4426 (or 4422 counting only the distinct ones).

The product of its digits is 43200, while the sum is 39.

The square root of 55811496 is about 7470.7092032818. The cubic root of 55811496 is about 382.1564740033.

The spelling of 55811496 in words is "fifty-five million, eight hundred eleven thousand, four hundred ninety-six".