54521430 has 32 divisors (see below), whose sum is σ = 131411808. Its totient is φ = 14476800.

The previous prime is 54521407. The next prime is 54521443. The reversal of 54521430 is 3412545.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 54521430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3460 + ... + 11000.

It is an arithmetic number, because the mean of its divisors is an integer number (4106619).

Almost surely, 2^54521430 is an apocalyptic number.

54521430 is an abundant number, since it is smaller than the sum of its proper divisors (76890378).

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

54521430 is a wasteful number, since it uses less digits than its factorization.

54521430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7792.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 54521430 is about 7383.8628102098. The cubic root of 54521430 is about 379.1890137509.

Adding to 54521430 its reverse (3412545), we get a palindrome (57933975).

The spelling of 54521430 in words is "fifty-four million, five hundred twenty-one thousand, four hundred thirty".