54620451256 has 64 divisors (see below), whose sum is σ = 119779015680. Its totient is φ = 22865631360.

The previous prime is 54620451253. The next prime is 54620451287. The reversal of 54620451256 is 65215402645.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54620451253) 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, 633201 + ... + 714271.

It is an arithmetic number, because the mean of its divisors is an integer number (1871547120).

Almost surely, 2^54620451256 is an apocalyptic number.

54620451256 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54620451256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59889507840).

54620451256 is an abundant number, since it is smaller than the sum of its proper divisors (65158564424).

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

54620451256 is a wasteful number, since it uses less digits than its factorization.

54620451256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81364 (or 81360 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 40.

The spelling of 54620451256 in words is "fifty-four billion, six hundred twenty million, four hundred fifty-one thousand, two hundred fifty-six".