56121464 has 48 divisors (see below), whose sum is σ = 124467480. Its totient is φ = 23647680.

The previous prime is 56121463. The next prime is 56121469. The reversal of 56121464 is 46412165.

56121464 = T₃₂₇ + T₃₂₈ + ... + T₇₁₈.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56121463) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22739 + ... + 25085.

Almost surely, 2^56121464 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 56121464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62233740).

56121464 is an abundant number, since it is smaller than the sum of its proper divisors (68346016).

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

56121464 is a wasteful number, since it uses less digits than its factorization.

56121464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2428 (or 2417 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 56121464 is about 7491.4260324721. The cubic root of 56121464 is about 382.8626466552.

The spelling of 56121464 in words is "fifty-six million, one hundred twenty-one thousand, four hundred sixty-four".