1325353012551 has 80 divisors (see below), whose sum is σ = 2062914770400. Its totient is φ = 846949727232.

The previous prime is 1325353012523. The next prime is 1325353012579. The reversal of 1325353012551 is 1552103535231.

1325353012551 is a `hidden beast` number, since 1 + 3 + 2 + 53 + 53 + 0 + 1 + 2 + 551 = 666.

It is an interprime number because it is at equal distance from previous prime (1325353012523) and next prime (1325353012579).

It is not a de Polignac number, because 1325353012551 - 2²⁵ = 1325319458119 is a prime.

It is a super-2 number, since 2×1325353012551² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325353012591) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 634442715 + ... + 634444803.

It is an arithmetic number, because the mean of its divisors is an integer number (25786434630).

Almost surely, 2^{1325353012551} is an apocalyptic number.

1325353012551 is a deficient number, since it is larger than the sum of its proper divisors (737561757849).

1325353012551 is a wasteful number, since it uses less digits than its factorization.

1325353012551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3950 (or 3941 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 36.

Adding to 1325353012551 its reverse (1552103535231), we get a palindrome (2877456547782).

The spelling of 1325353012551 in words is "one trillion, three hundred twenty-five billion, three hundred fifty-three million, twelve thousand, five hundred fifty-one".