54421507 has 6 divisors (see below), whose sum is σ = 63306708. Its totient is φ = 46646964.

The previous prime is 54421501. The next prime is 54421537. The reversal of 54421507 is 70512445.

It is not a de Polignac number, because 54421507 - 2¹⁵ = 54388739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54421501) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 555273 + ... + 555370.

It is an arithmetic number, because the mean of its divisors is an integer number (10551118).

Almost surely, 2^54421507 is an apocalyptic number.

54421507 is a deficient number, since it is larger than the sum of its proper divisors (8885201).

54421507 is a wasteful number, since it uses less digits than its factorization.

54421507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110657 (or 1110650 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 54421507 is about 7377.0933978092. The cubic root of 54421507 is about 378.9572218689.

The spelling of 54421507 in words is "fifty-four million, four hundred twenty-one thousand, five hundred seven".