76251220400501 has 2 divisors, whose sum is σ = 76251220400502. Its totient is φ = 76251220400500.

The previous prime is 76251220400497. The next prime is 76251220400543. The reversal of 76251220400501 is 10500402215267.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70139452504900 + 6111767895601 = 8374930^2 + 2472199^2 .

It is a cyclic number.

It is not a de Polignac number, because 76251220400501 - 2² = 76251220400497 is a prime.

It is a super-2 number, since 2×76251220400501² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76251220400561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38125610200250 + 38125610200251.

It is an arithmetic number, because the mean of its divisors is an integer number (38125610200251).

Almost surely, 2^{76251220400501} is an apocalyptic number.

It is an amenable number.

76251220400501 is a deficient number, since it is larger than the sum of its proper divisors (1).

76251220400501 is an equidigital number, since it uses as much as digits as its factorization.

76251220400501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33600, while the sum is 35.

Adding to 76251220400501 its reverse (10500402215267), we get a palindrome (86751622615768).

The spelling of 76251220400501 in words is "seventy-six trillion, two hundred fifty-one billion, two hundred twenty million, four hundred thousand, five hundred one".