25497733779452 has 24 divisors (see below), whose sum is σ = 48677626007472. Its totient is φ = 11589847027200.

The previous prime is 25497733779443. The next prime is 25497733779461.

25497733779452 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (25497733779443) and next prime (25497733779461).

It is a self number, because there is not a number n which added to its sum of digits gives 25497733779452.

It is a congruent number.

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, 23947052 + ... + 24989132.

It is an arithmetic number, because the mean of its divisors is an integer number (2028234416978).

Almost surely, 2^{25497733779452} is an apocalyptic number.

25497733779452 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25497733779452 is a deficient number, since it is larger than the sum of its proper divisors (23179892228020).

25497733779452 is a wasteful number, since it uses less digits than its factorization.

25497733779452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1598189 (or 1598187 counting only the distinct ones).

The product of its digits is 2800526400, while the sum is 74.

The spelling of 25497733779452 in words is "twenty-five trillion, four hundred ninety-seven billion, seven hundred thirty-three million, seven hundred seventy-nine thousand, four hundred fifty-two".