25146445131402 has 16 divisors (see below), whose sum is σ = 57477588871872. Its totient is φ = 7184698608960.

The previous prime is 25146445131373. The next prime is 25146445131449. The reversal of 25146445131402 is 20413154464152.

It is a super-2 number, since 2×25146445131402² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 598724884081 = 25146445131402 / (2 + 5 + 1 + 4 + 6 + 4 + 4 + 5 + 1 + 3 + 1 + 4 + 0 + 2).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299362441999 + ... + 299362442082.

It is an arithmetic number, because the mean of its divisors is an integer number (3592349304492).

Almost surely, 2^{25146445131402} is an apocalyptic number.

25146445131402 is an abundant number, since it is smaller than the sum of its proper divisors (32331143740470).

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

25146445131402 is a wasteful number, since it uses less digits than its factorization.

25146445131402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598724884093.

The product of its (nonzero) digits is 460800, while the sum is 42.

Adding to 25146445131402 its reverse (20413154464152), we get a palindrome (45559599595554).

The spelling of 25146445131402 in words is "twenty-five trillion, one hundred forty-six billion, four hundred forty-five million, one hundred thirty-one thousand, four hundred two".