46405251 has 8 divisors (see below), whose sum is σ = 68748560. Its totient is φ = 30936816.

The previous prime is 46405181. The next prime is 46405253. The reversal of 46405251 is 15250464.

46405251 is a `hidden beast` number, since 4 + 6 + 405 + 251 = 666.

It is not a de Polignac number, because 46405251 - 2¹³ = 46397059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1718713 = 46405251 / (4 + 6 + 4 + 0 + 5 + 2 + 5 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (46405253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 859330 + ... + 859383.

It is an arithmetic number, because the mean of its divisors is an integer number (8593570).

Almost surely, 2^46405251 is an apocalyptic number.

46405251 is a deficient number, since it is larger than the sum of its proper divisors (22343309).

46405251 is a wasteful number, since it uses less digits than its factorization.

46405251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1718722 (or 1718716 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 46405251 is about 6812.1399721380. The cubic root of 46405251 is about 359.3539106062.

It can be divided in two parts, 46405 and 251, that added together give a 6-th power (46656 = 6⁶).

The spelling of 46405251 in words is "forty-six million, four hundred five thousand, two hundred fifty-one".