46401551 has 12 divisors (see below), whose sum is σ = 56335728. Its totient is φ = 37431552.

The previous prime is 46401533. The next prime is 46401559. The reversal of 46401551 is 15510464.

It is not a de Polignac number, because 46401551 - 2²² = 42207247 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 46401551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46401559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9446 + ... + 13491.

It is an arithmetic number, because the mean of its divisors is an integer number (4694644).

Almost surely, 2^46401551 is an apocalyptic number.

46401551 is a deficient number, since it is larger than the sum of its proper divisors (9934177).

46401551 is a wasteful number, since it uses less digits than its factorization.

46401551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22978 (or 22961 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 46401551 is about 6811.8683927392. The cubic root of 46401551 is about 359.3443596410.

The spelling of 46401551 in words is "forty-six million, four hundred one thousand, five hundred fifty-one".