88620531551 has 2 divisors, whose sum is σ = 88620531552. Its totient is φ = 88620531550.

The previous prime is 88620531541. The next prime is 88620531563. The reversal of 88620531551 is 15513502688.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 88620531551 - 2²⁶ = 88553422687 is a prime.

It is a super-2 number, since 2×88620531551² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88620531511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44310265775 + 44310265776.

It is an arithmetic number, because the mean of its divisors is an integer number (44310265776).

Almost surely, 2^88620531551 is an apocalyptic number.

88620531551 is a deficient number, since it is larger than the sum of its proper divisors (1).

88620531551 is an equidigital number, since it uses as much as digits as its factorization.

88620531551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288000, while the sum is 44.

The spelling of 88620531551 in words is "eighty-eight billion, six hundred twenty million, five hundred thirty-one thousand, five hundred fifty-one".