51223101652635 has 64 divisors (see below), whose sum is σ = 89926360289280. Its totient is φ = 24691401463680.

The previous prime is 51223101652553. The next prime is 51223101652687. The reversal of 51223101652635 is 53625610132215.

It is not a de Polignac number, because 51223101652635 - 2²⁶ = 51223034543771 is a prime.

It is a super-2 number, since 2×51223101652635² (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 63 ways as a sum of consecutive naturals, for example, 139310202 + ... + 139677408.

It is an arithmetic number, because the mean of its divisors is an integer number (1405099379520).

Almost surely, 2^{51223101652635} is an apocalyptic number.

51223101652635 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51223101652635 is a deficient number, since it is larger than the sum of its proper divisors (38703258636645).

51223101652635 is a wasteful number, since it uses less digits than its factorization.

51223101652635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372128.

The product of its (nonzero) digits is 324000, while the sum is 42.

The spelling of 51223101652635 in words is "fifty-one trillion, two hundred twenty-three billion, one hundred one million, six hundred fifty-two thousand, six hundred thirty-five".