25234415440402 has 16 divisors (see below), whose sum is σ = 43275578641920. Its totient is φ = 10810604288448.

The previous prime is 25234415440397. The next prime is 25234415440447. The reversal of 25234415440402 is 20404451443252.

It is a super-2 number, since 2×25234415440402² (a number of 28 digits) contains 22 as substring.

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, 345394338 + ... + 345467389.

It is an arithmetic number, because the mean of its divisors is an integer number (2704723665120).

Almost surely, 2^{25234415440402} is an apocalyptic number.

25234415440402 is a deficient number, since it is larger than the sum of its proper divisors (18041163201518).

25234415440402 is a wasteful number, since it uses less digits than its factorization.

25234415440402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690864345.

The product of its (nonzero) digits is 614400, while the sum is 40.

Adding to 25234415440402 its reverse (20404451443252), we get a palindrome (45638866883654).

The spelling of 25234415440402 in words is "twenty-five trillion, two hundred thirty-four billion, four hundred fifteen million, four hundred forty thousand, four hundred two".