54621270 has 128 divisors (see below), whose sum is σ = 162362880. Its totient is φ = 12954240.

The previous prime is 54621263. The next prime is 54621271. The reversal of 54621270 is 7212645.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54621271) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 157237 + ... + 157583.

It is an arithmetic number, because the mean of its divisors is an integer number (1268460).

Almost surely, 2^54621270 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54621270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81181440).

54621270 is an abundant number, since it is smaller than the sum of its proper divisors (107741610).

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

54621270 is a wasteful number, since it uses less digits than its factorization.

54621270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427 (or 421 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 54621270 is about 7390.6204069753. The cubic root of 54621270 is about 379.4203304146.

The spelling of 54621270 in words is "fifty-four million, six hundred twenty-one thousand, two hundred seventy".