54249790 has 16 divisors (see below), whose sum is σ = 111599712. Its totient is φ = 18599904.

The previous prime is 54249787. The next prime is 54249809. The reversal of 54249790 is 9794245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 387429 + ... + 387568.

It is an arithmetic number, because the mean of its divisors is an integer number (6974982).

Almost surely, 2^54249790 is an apocalyptic number.

54249790 is an abundant number, since it is smaller than the sum of its proper divisors (57349922).

54249790 is a wasteful number, since it uses less digits than its factorization.

54249790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775011.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 54249790 is about 7365.4456755854. The cubic root of 54249790 is about 378.5582254461.

The spelling of 54249790 in words is "fifty-four million, two hundred forty-nine thousand, seven hundred ninety".