78025037 has 2 divisors, whose sum is σ = 78025038. Its totient is φ = 78025036.

The previous prime is 78025033. The next prime is 78025067. The reversal of 78025037 is 73052087.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67141636 + 10883401 = 8194^2 + 3299^2 .

It is a cyclic number.

It is not a de Polignac number, because 78025037 - 2² = 78025033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 78024994 and 78025012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78025033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39012518 + 39012519.

It is an arithmetic number, because the mean of its divisors is an integer number (39012519).

Almost surely, 2^78025037 is an apocalyptic number.

It is an amenable number.

78025037 is a deficient number, since it is larger than the sum of its proper divisors (1).

78025037 is an equidigital number, since it uses as much as digits as its factorization.

78025037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 78025037 is about 8833.1781936062. The cubic root of 78025037 is about 427.3115789013.

The spelling of 78025037 in words is "seventy-eight million, twenty-five thousand, thirty-seven".