54542500 has 30 divisors (see below), whose sum is σ = 119279006. Its totient is φ = 21816000.

The previous prime is 54542471. The next prime is 54542503. The reversal of 54542500 is 524545.

54542500 = 1496² + 1497² + ... + 1519².

It can be written as a sum of positive squares in 5 ways, for example, as 16695396 + 37847104 = 4086^2 + 6152^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (54542503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 8409 + ... + 13408.

Almost surely, 2^54542500 is an apocalyptic number.

54542500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

54542500 is an abundant number, since it is smaller than the sum of its proper divisors (64736506).

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

54542500 is a wasteful number, since it uses less digits than its factorization.

54542500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21841 (or 21824 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 54542500 is about 7385.2894323784. The cubic root of 54542500 is about 379.2378537730.

The spelling of 54542500 in words is "fifty-four million, five hundred forty-two thousand, five hundred".