73552625537 has 2 divisors, whose sum is σ = 73552625538. Its totient is φ = 73552625536.

The previous prime is 73552625519. The next prime is 73552625581.

73552625537 is nontrivially palindromic in base 10.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36802201921 + 36750423616 = 191839^2 + 191704^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 73552625537 - 2⁶ = 73552625473 is a prime.

It is a super-2 number, since 2×73552625537² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (73552625737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36776312768 + 36776312769.

It is an arithmetic number, because the mean of its divisors is an integer number (36776312769).

Almost surely, 2^73552625537 is an apocalyptic number.

It is an amenable number.

73552625537 is a deficient number, since it is larger than the sum of its proper divisors (1).

73552625537 is an equidigital number, since it uses as much as digits as its factorization.

73552625537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6615000, while the sum is 50.

The spelling of 73552625537 in words is "seventy-three billion, five hundred fifty-two million, six hundred twenty-five thousand, five hundred thirty-seven".