5421400025 has 12 divisors (see below), whose sum is σ = 6904227372. Its totient is φ = 4219899840.

The previous prime is 5421400021. The next prime is 5421400057. The reversal of 5421400025 is 5200041245.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 259983376 + 5161416649 = 16124^2 + 71843^2 .

It is not a de Polignac number, because 5421400025 - 2² = 5421400021 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5421400021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2929562 + ... + 2931411.

It is an arithmetic number, because the mean of its divisors is an integer number (575352281).

Almost surely, 2^5421400025 is an apocalyptic number.

It is an amenable number.

5421400025 is a deficient number, since it is larger than the sum of its proper divisors (1482827347).

5421400025 is a wasteful number, since it uses less digits than its factorization.

5421400025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5861020 (or 5861015 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 5421400025 is about 73630.1570350084. The cubic root of 5421400025 is about 1756.7251456892.

The spelling of 5421400025 in words is "five billion, four hundred twenty-one million, four hundred thousand, twenty-five".