5400370521 has 48 divisors (see below), whose sum is σ = 9956279424. Its totient is φ = 2848535424.

The previous prime is 5400370519. The next prime is 5400370529. The reversal of 5400370521 is 1250730045.

It is a happy number.

5400370521 is a `hidden beast` number, since 540 + 0 + 3 + 70 + 52 + 1 = 666.

It is not a de Polignac number, because 5400370521 - 2¹ = 5400370519 is a prime.

It is a super-2 number, since 2×5400370521² = 58328003528171622882, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (5400370529) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 99996 + ... + 144221.

It is an arithmetic number, because the mean of its divisors is an integer number (207422488).

Almost surely, 2^5400370521 is an apocalyptic number.

It is an amenable number.

5400370521 is a deficient number, since it is larger than the sum of its proper divisors (4555908903).

5400370521 is a wasteful number, since it uses less digits than its factorization.

5400370521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244252 (or 244240 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 5400370521 is about 73487.2133163314. The cubic root of 5400370521 is about 1754.4507683054.

The spelling of 5400370521 in words is "five billion, four hundred million, three hundred seventy thousand, five hundred twenty-one".