54431620 has 24 divisors (see below), whose sum is σ = 121031064. Its totient is φ = 20491776.

The previous prime is 54431617. The next prime is 54431621. The reversal of 54431620 is 2613445.

It can be written as a sum of positive squares in 4 ways, for example, as 937024 + 53494596 = 968^2 + 7314^2 .

It is not an unprimeable number, because it can be changed into a prime (54431621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79707 + ... + 80386.

It is an arithmetic number, because the mean of its divisors is an integer number (5042961).

Almost surely, 2^54431620 is an apocalyptic number.

It is an amenable number.

54431620 is an abundant number, since it is smaller than the sum of its proper divisors (66599444).

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

54431620 is a wasteful number, since it uses less digits than its factorization.

54431620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160119 (or 160117 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 54431620 is about 7377.7787985274. The cubic root of 54431620 is about 378.9806939435.

It can be divided in two parts, 54431 and 620, that multiplied together give a triangular number (33747220 = T₈₂₁₅).

The spelling of 54431620 in words is "fifty-four million, four hundred thirty-one thousand, six hundred twenty".